Automatic shoe-machine.



Bi B. WINKLEY.

' AUTOMATIC SHOE MACHINE. I APPLIOATION FILED JuLYzs leo'g. r

Patented Dec. 23, 1913.

10 SHEETS-SHEET '1.

E. E. WINKLEY. AUTOMATIC SHOE MAGHINB. APPLICATION FILED JULY gs, 1909.

Patented Dec. 23, 1913.

zgzzz ses: We /am E. E. WINKLBY. IAUTOMATIG SHOE mamas. AEPHPLIOA'TIOIIT PIL'BD mm; 28; 1900'. v

' Patented Dec; 23, 1913.

I muslin-BET 5."

- an, WI NKLBY. wmm'rw anon momma; Arrmornon mm) JULY 29, 1900.

- Patented Dec. 23, 1913.

lflmas'sesr E. B. WINKLE'Y AUTOMATIO SHOE MACHINE; APPLIGATIONIILED JULY 28, 1909.

1,082 1 85,- 'Patmted Dec; 23, 1913.. j

10 SHEETS-SHEET 7.

\\ .95 CD I B. B-WINKLEY.

AUTOMATIC SHOE MACHINE. APPLICATION FILED JULY 29, 1909.

E. E. WINKLBY.

AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY 28, 1909.

1,082,185, Patented D60.23,1913.

IQ'SHEETSSHBET [Martian- 5w f-ZM @W M Q ){Zzzessas- I W E. B. -WINKLEY.

AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY 28, 1909.

Patented Dec. 23, 1913.

1o sums-aunt. 10.

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I..;App1tcatipn.fi1ed alles, 1909. serial m thanol.

it may. concern Bait known that I, ERASTUS E. WINKLEY, a. citizen of the United'states, residing at Lynn, in fiche county; of Essex and Stateof Massachusetts, have, invented 4 certain new- ;and useful :l'inprovements in Automatic ShoeeMachines; and I :do hereby declare the following to be a full, clear, and exact description of hhGJIl'VEIlt-lGIl, suchas will enable othersskilled in the art to whichdt.

The. present invention relates to machines operating upon boots and shoes inwhich the shoe and. operatingnieans arerelatively moiiableto-tnansfer the pointv of operation of the.-operatingl-nieans around the shoe, and in which the-relative movements het'Ween thelshoeand means for operatingthereon'lareautomatically: affected and controlled, so-that the shoe is properl presented' to'the operating means as the point of operation is transferred; around the shoe.

T he object of theinvention is to provide an automatic machine ofihischaracter havi an improved-construction which renders "u s operation more! nniform,.oertain and reliable. I V

I this end. the invention contemplates the provision in aniachine in which the supporting jack are relatively movable to transterthepoint of operation ot'theoper atingmeans around the v.shoe,. of novel and improved-means for deter-mining the point about which: the relative swinging move- .ineans for operating on a-shoe and a shoeinents which are imparted to the'jack and, operatingn eansshall talre place, wherebythe -swingingmovements may he made to take place about the point of operation of the operating means Without strain upon the'partsof-said means whicharein en wgagernentwith the shoe :the provision of improvedirneans for imparting the-relative feed-ingmovemehts to the jack-and operating-means-to transfer the point of operation of the operating means around the shoe,

whereby the proper feeding movements are oiiected "without undue strain upon those par-ts of-the operating me'answhich operate by engagement with the shoe to impart 'lrelativeifeeding-movementsto the shoe and operating.means;. -and.the provision of improvednneansaforcontrolling the operatlon oi mechanism which actsto. automatically correct the relative position of the operating means ,and.1 shoe. as the-point cf 7 operationaof the operating means is transferred around lthe shoe, whereby the correcting mechanism is operated at proper intervals during the transfer of the point of operahi 5 is a vertical sectional view on line o5, Fig. 3 Fig. 6 1s a detail plan view partly in section of a part ofthe devices for timing the. operation of the correcting mechanism; Fig. 7 is an end elevation, partly in section,

of the'parts shown in. Fig. 6; Fig. 8 is a detail elevation, partlyin section, showing parts of the .feeding mechanism and the vdevice's. for determining the point about which the jack swings; Fight is a similar viewto Fig. 8,:l0oking at the devices from the other side; Fig-10 is a front elevation 'of'the devices shownlin Fig. 9, looking toward the leftin Fig. 8; Fig. 11 is a plan view of the devices shown in Figs. 8 to 10;

Fig. 12 is a horizontal sectional view on line 12 12, Fig. 8; Fig. 13 a sectional detail view oi the feeding gripper; Fig. A is a sectional. detail on line 1l14l Fig. 12; Fig. 15 is a detail showing certain parts of the tripping .inechanism; Fig. 1.6,is a

transverse vertical sectional view showing parts to he described; Fig. 17 is a rear View of the driving shaft with the frame shown in section; Fig. 18 is a sectional detail on line 18-18, Fig. 17 g and Fig. 19 is a sectional view on line 1919, Fig. 17.

In the construction shown the features of the invention are embodied in a machine in which the means for operating upon the shoe consists of a sewing mechanism which is substantially the some in construction as the welhknoivn Goodyear welt and turn shoe sewing machine shown. and described in Patent N0. 412,764, Qci-oberfi, 1889. The shoes to be operated upon are carried upon a jack, and correcting mechanism is provided gi ing the relativejinovements to transferred around the shoe.

the sewing mechanism and jack requisite 1:01;. properly presenting the shoe to the sewing mechanism as the point of operation is The relative movements requisite to transfer the point of operation around the shoe are effected by imparting longitudinal and swinging movemerits to the jack,. and the. requisite relative longitudinal and transverse tipping or tilting movements are effected by movement of the support on'which the sewing mechanism is carried.

The sewing mechanism is mounted upon a supporting carrier 1 and is provided with the usual channel guide, back gage, feeding awl and stitch forming instruinentalities.

. The support 1 is mounted'to slide on segmental ways 2 formed on a head 3 which is mounted to turn. in suitable bearings 4c and 5 formed in the frame of the machine. The segmental ways are formed concentric with the point of operation of the sewing mecha nism, so that'the lateral tilting movements imparted to the sewin mechanism by sliding the support 1 on t e ways 2 take place about the point of. operationof the sewing mechanism. The bearings for the head are so arranged that the axis about which the head turns passes through the point of operation of the sewing mechanism, so that the longitudinal tilting movements imparted to the sewing mechanism by rocking the head 3 also take-place about the pointofop- -eration-of the sewing mechanism.

Movements are imparted to the support 1 ,to vary the lateral inclination of the sewing mechanism by a cam 6 secured to a cam shaft 7 and connected to control the position of the support 1 on the ways 2. The cam 6 is arranged to engage a roll on the end of an arm 8 projecting from a sleeve 9 which is pivotally mounted upon the frame of the machine (Fig.16). The sleeve 9 is provided with a second one end of the bell crank lever 12'. The

' other end of the bell crank lever isprovided with two arms 13 arranged to engage aring of the support 1 uponthe ways. 2 is con-. trolled'and varied by the cam 6 to correct' 14 which is mounted on a sleeve 15" surrounding the hollow shaft 16 of the head 3.

The sleeve 15 is connected with a rod 17 by means of a pin 18-whichpasses through the sleeve and rod, and through longitudinal" slots 19 formed in the hollow shaft 16. The rod 17 is mounted to slide within the hollow shaft, and the forward end of the rod is connected by a link 20 with one end of the bell crank lever 21,.the'. other end of which is connectedloya link 22'with the support 1. Throughthese connections the position the relative lateral inclination ofthe sewing mechanism, and shoe in accordance with the part of-theshoe being operated upon.

arm 10, the endof' which isconnected by an adjustable link. 11 with The position of the head 3 is controlled and varied to determine the longitudinalinclination of the sewing mechanism by a cam '23 connected to impart rocking'movements' to the head. The cam is arranged to engage a roll 24 on the end of an arm 25 which projects from a sleeve '26 ivotally mountedon the frame of the. mac ine. The sleeve 26 is provided with a prO eeting arm 27, the outer end of which is connected by a'link 28 with a lug 29 formed. on the head 3. A

spring 27 arrangedto engage an arm 28 on the sleeve 26 holds the roll 24 in engage- Through.

ment with the cam (Fig. 16). .these connections the cam 23 acts tocorrect the relative longitudinal inclination of the sewing mechanism and shoe in-accordance with the part ,of the shoe being operated upon. 1 V y The jack upon which theshoe tobe operated upon is supported is provided with a base 30, and with heel and toe supports 31 and 32 for supporting a lastedshoe. .The-

jack is secured upon the upper end of a w v shaft. 33, which is' mounted to rotate and slide vertically inbearings formed in the transferring the point of operation of the sewing mechanism around the shoe, and in in fixed bearpresenting the shoe supported upon thejack in proper position to be'o'p'erated upon by.

the feeding and" itch forming-device's. of the sewing mechanism. Theja'ck forced yieldingly up'ward to pressthesho'againstthe channel guide during the sewingoperation by a spring 3 9 ,connectedto one end of a bell crank lever 40 the otherend of which file engages a collar LsQetilFQtl-ti; the ack carrying shaft 33.

Longitud'nal movements are imparted to the jack bythe'feeding and of the sewing? mechanis i, and by an auxiliar-yffeed' which will be oescril5ed ten; Swinging -movements are imparted-t0 the jack to correct the relative position of -the shoe and sewing 1 mechanism as the pqi'nt ofoperat ion of .the sewing mechanism is transferred' around the shoe bya cam AC2 securedjothe'jshaft Land connected to 'inrpart-jrofa-ry movements to: the jack carrying shaft The cam is arranged to engagearoll carried bWf-helower end of a lever 43. the upperfend ofwhich: is connected to a sliding bar The bar is providedon one side with-rack teeth .arranged to engage a pinion 45 which is secured tothe lowerendlof the 'shaft 37, The

ocales shaft 87 is connected with the shaft 35 by intermeshing gearing 46, and the shaft 35 is connected with the shaft 33 by intermeshmg gearing 47. Through these connections thecam 42 acts to impart rotary movements to the shaft 33 to swing the jack, and thus correct the relative position of the shoe and sewing mechanism as the point of Operationof. the sewing mechanism is transferred around the shoe.

The swinging movements are imparted to.

the work by rotating the jack carrying shaft 33, the devlces of the sewing mechanism are in'engagement with the shoe at the point of mechanism which engage the work will thus act to cause the swinging movement to take place about the point of operation, but since this swinging movement involves abodily movement of the jack and the. jack supporting arms, more or less strain is put upon the devices which engage the workat the point of operation, and under some conditions this strain is liable to cause a displacement of the work which will intefere with the proper operation of the sewing mechanism upon the shoe. In order to relieve the devices of the sewing mechanism from strain, and in order to avoid all danger of a displacement of the work as the jack is swung, nieansjis provided which acts independently of the devices engaging the work to cause the work to swing about the point of operation of the means for operating upon the shoe; In the-construction shown these devices consist of a cla1np,.the jaws 48 and49 of which are arranged to grip a plate 50 in line with the point of operation of the sewing mechanism upon the shoe. The plate 50 is securedtothe jack carrying shaft 33, and has an. outline corresponding generally to the shape of ashoe sole, so that the marginal portion of the plate may travel between the-jaws of the gripper as the jack is moved longitudinally and swungduring'the sewing operation. The j of the clamp are so arranged that a line passing through the point-of operation of the .sewingmechanism, and parallel with the axis of the jack carryingshaft 33,-

will pass through the axis-of the clamping jaws. Whenlthe clamp is engaged with the plate 50, therefore,it will form a pivot or fulcrum about which the jack will swing when the jack carrying shaft 33 is rotated and as this pivot is in line with the point, of operation of-tl'ie sewing mechanisnrupon the shoe, the clamp will insure the swinging ,of the ack about the point of operation independentlyiof the engagement of the sewin-g mechanism with the shoe. The fixed aw 48 of the pivot clamp consists of a stud mounted for rotation in the outer end of a fixedarm 51, and the movable jaw 49 of the clamp consists of -a similarstud mounted for rotation in the outer end of a lever 52 mounted beneath the arm 51. The lever 52 is operated to clamp and release the plate50 by means of a piston 53 arranged in a cylinder 54, and provided with a pisgtonIrod 55', the lower end of which engages the rear end of the lever 52. A. spring 56 is arranged between the lower end of the cylinder and the piston, andtends to raise the piston and thus unclamp the plate 50. The upper end f the cylinder is connected through a pip 57 with devices for supplying compressed a lVhen theicompressed air is admitted to the pipe 5?, it acts to force down the piston and? thus operate the lever toclamp the plate 50 between the jaws 48 and 49.-

The feeding awl of the sewing mechanism will operate to advance the work and thus move the jack longitudinally. In order to assist the awl in feeding the shoe, or to relieve it of the strain incident to overcoming the inertia and friction of the jack supportingdevices, a supplemental feeding mechanism is provided for imparting movements to the jack in un-ison'with the feeding movements of the awl. In the construction shownthi's supplemental feeding mechanism comprises a feeding gripper or clamp m ranged to act upon the plate 5.0, and operated to impart feeding movements to the plate and connected jack substantially co-extensive with 'the feeding movements of the awl. The feeding-gripper comprises an arm 58 pivotally mountedin the support 59 to swing about a vertical axis (Figs. 8, 9, 10, l1 and 13). The arm 58 is provided at its forward end with a stud 60 mounted to turn freely in tie end of the arm, and provided with a head for engaging the upper surface of the plate 50. -Tl'1em'ovable jaw of the gripper comprises a similar stud 61 pivotally mount- 'ed in the vend of-a lever 62 which is pivoted to the arm 58. The, rear end of-the lever- .isengaged by the lower. end of a piston rod 63, the upper end of whieh carries a piston 64 arranged'within a cylinder A spring. 66 is interposed between the piston andthc upper end of the cylinder, and tends to operate the lever 62 togrip' the plate $0 hetween the jaws 60 and 61 of the feeding grip-1 per. The lower end ofthe cylinder is connected through a pipe 67 with-a supply of compressed air, and when the air pressure is l.

on it forces the'piston up against'the tension of the spring 66, thus disengaging the aws 'of the. gripper. from "heplatefio. Thenslip -o'o allows the valve to'return to 1ts previous poply of air through the pipe 67 is controlled:

hy m :hanism to be described to operate the gripper to clamp and release the plate 50 at proper intervals, as will be more fully explained hereafter. Feeding movements are which is connected by a pivotal joint 69 with an arm 70 which extends at right angles from the arm 58. The lower end of the lever 68 is connected to the outer end of a piston rod 71, the inner end of which is provided with a piston 72 arranged within a cylinder 73. A spring 74 is interposed be tween the outer end of thecylinder and the piston 72, and tends to move the piston in a direction to advance the feeding grippers,

The rear end of the piston is. connected 2bf'tl1rougl1 a pipe 75 with devices for supply ing compressed air to the piston. When the outer end of the cylinder is in communication with the supply of compressed air, the air pressure acts to advance the piston and return the feeding gripper to its retracted position. i

- The supply of compressed air to the cylin ders 54 and 65 for controlling the opening and closing of the pivot clamp orgripper and the feeding clamp or gripper, and the supply of compressed air to the cylinder 73 for controlling the feeding movements of the feeding gripper, is controlled by a valve 76 whichis intermittently operated by a cam 77 secured to the cam shaft 78 of the sewing machine. The pipes 57, 67 and 7 5 are led to the cylinders 54:, and. 73 respectively, which connect with a distributing union 79 which is in turn connected through a pipe 80 with the supply port 81 of the casing 82 within which the controlling valve 76 is mounted (Figs. 1, 5 and 7'.). The valve 76 is connected to'a lever 83, the end of which carries a roll engaging the cam 77. The end of the lever isacted upon by asprin'gfp'ressed pin 84: \VlllCl1 holds the roll in eng gement with the cam, and tends to hold the Valve 7 6 in such position that there is open commu- The cam 77 is so arranged that as the feeding movement of the feeding awl of the sewing mechanism is aboutto begin, the lever 83' ismoved to cutoff communication between the supply port 85 and the port 81, and open, communication between the 81 and the exhaust ports 87 The cam 7 holds the valve 76in this position until the -feeding movement of the awl is completed, and then 7 "sition, thusputting the pipe 80 into commnnication withthe supply of compressed air.

The'pipe 80 is therefore in communication with the supply of compressed fain except stroke of the gripper. A feeding impulseimparted to' jthe work by during the periods when the feeding of the work is taking place. The compressed air, therefore,"acting on the pistons 53, 6A and 72, acts normally to hold the pivot clamp in en- I gagement with the'plate 50, 130 hold the feedimparted to the feeding gripper while the aws 60 and 61 are in engagement with the plate 50 through a lever 68, the upper end of ing gripper out of engagement with the plate 50, and to hold the feeding gripper in its, retracted position. When the cam 77 operates the valve 76 to relieve the air pressure upon the pistons 53, 64 and 72, the springs 56 and 66 act to disengage the pivot clamp fromthe plate- 50 and to engage the feeding gripper with the'plate 50, and the spring 7% tends to force the feeding gripper forward to advance thejack inathe direction of the feeding movement of' the feeding awl. The spring 56 is somewhat stronger than the spring 74, so that the feeding gripper isoperated to grip theplate 50 before the spring 74. acts to advance the feeding gripper. The engagement of the feeding gripper with the plate 50 before it is given an advancing'movement may also be insured by so constructing the spring 66 that it will act to close the feeding gripper before the spring 53 acts to disengagethe pivot clamp. During the feeding movementof the feeding awl, the feeding gripper is forced forward by the spring 7% to assist in thefeed of the work, and to overcome the inertia and friction of the jack supporting devices. The proper feed of the work is thus insured Without putting unusual strain ,upon the feeding devices which engage the work. I

The feedlng movements imparted to the jack and shoe durmg the sewlng operation 'totransfer the .point of operation of the sewing mechanism about the shoe, causes the jack and shoe to move'in a horizontal plane. So long, therefore, as the sewing mechanism is held in mid-position longitudinally, that is, in such position that the'awl moves in a horizontal plane during its feeding movement, the movement imparted, to the work and jack will be the same as the feeding stroke of the awl. Whenever the sewing mechanism is tilted longitudinally, however, the awl will move in an inclined .plane', while the jack and shoexwill still move in a horizontal plane The. movement imparted to the shoe and jack, therefore, will in such-case be less than the stroke of the awl, and the decrease in the movement imparted to the shoe and jack by the 'awl will depend upon the extent to which the sewing mechanism is tilted'longitudinally. The feeding gripper always operates in a horizontal. plane, and the feeding impulseimparted to the jack and shoe by the feeding gripper will always l'n ord e'r that the the feeding grippermayflaecurately coinbe the sameas the 1,082,188 I I a stroke. This bar is provided with control- Eli nag surfaces 9.0 extending .above and below flthep'oint on the bar which is normally engag'ed by the roll 89 when the feeding grip- --per-.is in its retracted-position.- LThe lower endfof the bar '88 is'connected by a in and Ft slot connection with the outer end of an m ni-91 which is secured to one end 'of'a mmense 92'; The other'end of the'rock shaftis provided withan arm v93 which is cfilmcted by a link 94; with one of the arms 27j'which projects from the sleeve 26 through which. longitudinal tilting movements are imparted to the sewing mechanism. Whenever the sewing'mechanism is ",iven a longitudinal tilting movement, the

an r '88 is' moved either,up or down from its normal position; th us moving one or the other of he inclined/controlling surfaces 90 ,into ;position' to'en'g'age the roll 89. This movement of the bar 88 thus advances the 'feeding gripper so: that its feeding stroke is shortened. The extent to which the feed ing stroke of the gripper is shortened will depend upon the extent to which the 'bar 88'. is moved, and therefore the feeding a0 stroke of the gripper will be varied. in' accordance with the longitudinal tilting of the sewing mechanism. faces 90. are so formed that the feeding stroke of the feeding gripper is-varied in as accordance with the variation in the. feeding ofthe' shoe by the feedingawl, caused by thejlongitudinal tilting ofthe sewing rnechanism. The swinging of the jack between two succeeding feeding strokes of the feeding awl. will [also cause a; decrease in tli e 'movement imparted to the shoe and by the-avvlhMeans is accordingly provided for varying .theefeeding stroke of the feeding gripperlin accordance with the V variation" in the-movement imparted to the shoeand j ack caused'by the swinging of the jack between, successive feeding movements.

In'the construction shown this means comprises a second. slide bar 95' similar to the barv 88, and arranged to be engaged' by asecond roll 96 mountedeon the front end of the piston rod 71. This bar .is'i-provided with two. inclined controlling surfaces 97 extex'idinp: above and below'the point which 6.51918 normally engaged by the roll 96,-as in- The controlling surdicated in Fig. 8'. The lower end ofthe bar 95 is connected bya pin and slot connection wlth an armf98 projecting from a clutch member 99. The clutch member 99 is mounted upon a fixed horizontal stud 100, and carries a helical clutch sleeve 101 which surrounds the hub 102 of a beveled gear 103 which is mounted to turn on the stud. The clutch-sleeve 101 is operated by alever 104. pivotedon the clutch member 99, and provided with a wedge block 105 for operating the clutch sleeve. The outer end of the operating lever 104C engages the conical end 106 of a.hollow piston rod 107 which is connected with a piston 108 arranged in a cylinder 109 (Fig. 12). A spring 110 is arranged between the inner end of the cylinder and the piston, and tends to withdraw the piston rod. and thus release the clutch sleeve 101 from clutching engagement with. the hub of the gear 103. The rear end of the cylinder 109 is connected through a pipe 111 With the-distributing union 79 heretofore described. When the air pressure is admitted to the cylinder, it forces the piston for-ward against the tension of the spring 110, "and operates the clutch sleeve 101' to lift the hub of the beveled gear 103. The clutch member 99 is normally held in position to maintain the bar 95 with the neutral point between the inclined surfaces 97 in position to be engaged by the roll 96. The

means "for thus-holding the clutch member in normal position, and for returning'the clutch member to this position when the clutch sleeve 101 is disengaged from the hub of the gear 103, comprises a spring 112 coiled abouththe hub' of the gear 103, and having its ends arranged to lie upon oppo site sides of two pins .113 and ll l. The pin 113 is a fixed pin which projects from an arm formed on the stud 100.while the pin 11 1 projects from the clutch member 99.

The spring tends to hold these two pins in line, asindicated in Figs. 12 and 14. The

gear 103 is engaged by -a beveled gear 115 vhich is connected with a spur gear 116 arranged to mesh with that one of the gears 46 which is secured to the shaft 37.

Normally the compressed air is supplied to the end of the cylinder 109 through thedistributing union 79 and pipe 80, and the clutch member 99 is connected with the hub of the gear 103 so that it will turn with the gear. In case the shaft 37 is operated to swingthe jack between two successive feeding movements, the ,movement, imparted to the shaft 37 is transmitted through the gear 116 and beveled gears 115 audios to, the

clutch member 99, so that the clutch-member is opera-tedtoi move theslide bar'95 either up or down, as the case may be. This movement of-the bar 95 bringsone of the inclinedcontrolling sunfaces 97 into "position to engage the movement of the inclined controlling surface advances the feeding gripper sojthat'its next feeding stroke is shortened, and the decrease in the length of the feeding stroke will depend upon the extent to which the bar .95 is moved. The extent to which the bar 95 is moved will in turn depend upon the swinging movement which is imparted to the jack,

and therefore the feeding stroke of the feeding gripper "will be varied in accordance with the swinging movement imparted to the .jackpreceding such feeding stroke. As the feed is about to begin, the valve 76 is I opergted in the manner already described,

and relieves the air pressure in the cylinder 109 so that the piston 108 is operated by the spring. 110 to release the clutch member 99 from the gear. 103, so that the spring112 may return the clutch member to normal position. Thus the feeding stroke of the gripper-next succeeding a swinging movement of the jack is automatically varied. in accordance with the ,swinging movement imparted to the jaclnand the controlling surfaces 97 are so formed that the variation corresponds to the variation in the move ment imparted to the shoe and jack by the thrown into operation'at the proper time during the transfer of the point of operation about the shoe, and which when thrown intooperation makes a single revolution and then is automatically thrown. out. The

points in the transfer of the-point of operation about the shoe at which the correcting mechanism is thrown into operation is de termined by a controller which is connected to move with the jack." In the form shown,.

this controller comprises a plate 117 which is secured to the jack carrying shaft 33.' The plate has the general outline' %a shoe sole, and is'provided withaseries o j ownwardly.

projecting ins-118which-actas trips to.

determine t e points in the='relative '.travel of the tshoe'and operating-meansat which "the c orrectingmechanism1s thrownfinto op-'v eration. In order thatg the-relative move-. 'ments' imparted to the jack .and' sewing j mechanism by the, correcting-.- mechanism may be properly and 11nif0rmlytimedi'lw th l relatiori to the operation of the sewin" mec h' anismnipon the, shoe,"mechanism"1s"a so pro ivi ded for-- piope'rly' timing the operatlon of the correcting; mechanism in relation to thelloperation-fof the sewing mechanism.

TThrough the combined action of these two controlling mechanisms the correcting m'echand properly timed to effect the changesin the relative position of thee owing inechii nism and shoe when the devices of the sewing mechanism are in a predetermined rela tion.

The mechanism for intermittently operating the shaft 7 which carries the cams of the correcting mechanism comprises a clutch 119, one member of which is constantly driven through a main friction driving clutch 120, and the other member of which is secured to a shaft 121. The. shaft 121 is connected through change gearing 122 with ashaft 123 which carries a worm 124 engaging a worm wheel 125 secured'to the shaft 7. The intermittently operating clutch 119 may be of any suitable construction, and as shown is a form of Horton clutch. The ball carrying ring or sleeve for effecting the engagement and disengagement of the clutch is indicated at 126, and the throwing of the clutch into and out of operation is controlled by the arm 127 of a stop lever 128 which is normally held in position to engage a shoulder on the-ball carrying ring by a spring 129 (Fig. 17). The stop arm 127 of the stop lever is provided with at cushioning sprin and se'rves to cushion the blow when the clutch is thrown out of operation. A brake 121 for stopping the shaft v121 when the clutch is thrown out of operation is also provided, and this brake mechanism is operated by a brake lever 131. When the brake and stop levers are operated, the clutch 119 is thrown into operation, and after the shaft 121 has madea single revolution, the clutch is thrown out" and the brake mechanism 'thrownin, the clutch lever having been released and returned to normalgposition during the rotation of the shaft, and the brake lever being released as the shaft completes its revolution. During the revolution of the 130 which is engaged by the shoulder on the ball carryingring 120.

shaft the brake mechanism: s held out of action by a cam 132 arrang d. to engage a roll onthe brake lever.

The mechanism for operating the brake ,and clutch levers to throw the correcting mechanism into operation comprises a lever 133, the lower end of'which' is arranged to engage the'upper ends of' the brake and clutchlevers, and the upper end Of'WlliCll isfip'ivotally connected to. a sliding rod 134.

The rod is acted upon by a spring 135, which, 7

tends to force the rod in a direction to operate the clutch and brake levers to throw the driving mechanism into operation. The

rod" 134' is held in normal position against the tension of thespring-135 by a latching toggle 136 arranged to hold the lever 133in retracted position when the links of the toggle are straightened, as indicated in Fig. .5 2. -One link-of the toggle carries airoll ar ranged to be engaged by a resetting -cam 137 during the rotation of the shaft 121. The toggle 136 is broken to throw the driving mechanism into operation by means of a rod 138, the lower end of which is arranged tostrike the toggle. This rod is forced in a direction to break the toggle by a spring 139. The rod 138 is normally held in retracted position against the tension of the spring 139by a latch bar 140 provided with av pin 141 which is arranged to engage one arm 142 of a bell crank-lever, the other arm 143 of which is connected-to the upper end of the rod 1 38 (Figs. 3, 4 and 5). The pin 141 o-nthe'latohing bar 140 is held in projected position by a spring 144-for a purpose which will be hereinafter describedf The latchingbar 140 is forced in a direction to disengage the pin 141 from the arm 142, 2'5 and thus release the toggle actuating rod 136 by a spring 145. The bar isnormally held inlatching position against the ten sion of the spring 145 by a pivotedlatching dog 146 arranged to engage a shoulder 147 on the bar. The latching dog is held yieldingly in position to engage the shoulder on the latching bar by a spring pressed pin 148. The means for operating the latching dog 146 torelease the latching bar, and thus throw the driving mechanism for the correcting mechanism into operation, comprises a vertically sliding pin 149 arranged above the latching dog 146 and engaged by the lower end of a piston rod 150, the upper -'0 end of which is providcdwith apiston 151 mounted within a. cylinder 152. The upper end of the cylinder is connected by a pipe 153 with the port 154 of a valve casing 155 (Fig. 7); A valve 156 is mountedwithin the valve casing 155, and controls the supply and exhaust of compressed air through the pipe'153. The valve 156, isacted' upon by a spring 157 whiclrtends. to force the valve in a direction to open communion.

tion between'the pipe 153.and thesuppl'y ports 158 wliich are connected through a pipe 159-with a compressed air supply. The operation of the valve 156 is controlled by team 1,60 sccurcd to the cam shaft 78 of the, .55 sewing inachined This cam is provided with a depression'lfil and when this depression is inregister with the end of thevalve 156 the'valve is operated to supply compressed air to the'pipe v This supply 1 of com eo pressedair forces the piston 151 downward and operates the pin 149 .to'dis-engage the dog 146 at a definite period in the cycle of operations performed b the sewing mechanism provided movement of the pi r149 is a I tends to swing the lever 180 in a direction to not prevented when the recess in the am A! registers with the valve 156'. By this mechanism the proper timing of the opera-' ti'onlof the correcting mechanism with relation to the operation "of the sewing mechanism is insured. The disengagement of the dog 146" from the latching bar by the supplyof compressed air to the piston 151 at each revolution of the cam shaft of the sewing mechanism is normally prevented by a. controlling slide 162 arranged to normally lie between the pin 149 and the latching dog The slide 162 is thus withdrawn to deter-' mine the points in the travel of the point of operation of the sewing mechanismabou't the shoe at which the correcting mechanism shall be throwninto operation by devices actuated by the trip pins 118 on the controller plate 117 which is connected to move with the jack. The. connections through which the tripping pins actuate the controlling plate 162 comprise a bar 165 the'rear end of which is pivotally supported. upon a pivoted arm 166, and the front end of which is arranged to engage the edge of the controller plate 117 the end. of the bar being held in engagement with the controller plate by a spring 167 acting upon the arm 166. Aslide 168 is mounted in the front end of the bar 165. and carries a latch lever 16 the front end of which is arranged in the path of the trip pins 118. The latch, lever is mounted upon a pivot 170, and is holdin normal, position against the stop 171 173 a spring pressed pin 172. The latchlevcr is connected to operate a detent 173 which is also pivoted on the pivot170, and the rear end of which is arranged to engage a lug 174 on the bar 165. ,The detent is forced yieldingly into normal position by a spring 17 5.

The rear ehd of the slide 1138 is 0011- nected by a link 176 with one arm of a bell crank lever l'T'? which ismoiiuted upon the bar 165, and the other end ofwhich is connected by alink 178 with one arm 171) of a 'thrco-,arm lever 180." A second arm 181 of the threearm lover is 'connectcd by. a link 82 with one arm bf a hell crankleverlSil the other arnrof which is arranged to en and operate the bell crank lever 164 to which .the controller plate 162 is pivoted.

The third arm 184- of the three-arm lever 180 is aetcdupon by a spring 185 which bar 165, and also to withdraw the controller plate 162 from engagement with; its sup port 163. Theparts are held injno'rm-al po- 'sition against-. the tension of the spring 185 1 by the engagement of the detentJ173Ion-the plate 168 with the lug1'Z4 on the bar 165;

(lug 174," so that the spring 185 operates'to 1 wlthdraw the controlling plate 1.62 from engagement with itssupport 163, and also to retract the slide 168. Whenthis occurs the pin 149 is operated at the'proper time dur mg the cycle o'foperations performed by the sewing mechanismto 'throw the driving mechanism for. the correctingmechanism.

into operation. The rearward movement of the slide 168 brings a fingcr'186 on the front endof theslide into the pathlof the trippins, so that the passage of a second trip pin past the latch lever 169 is prevented with one end of. a

until-the parts are returned to normal position, Whenever the controlling devices are operated to throw the driving mechanisn'i for. the correcting mechanism into operation, they should beereset before the next succeeding feed of the shoe takes place. The resetting -mechanism in the form shown Comprises a cam 187.- carried by the shaft 121 and arranged to engage a roll carried upon the lower end of a rod 188. The upper end of the rod 188 is con nccted to an arm 189 which issecuredto-a rock shaft 190. "The rock shaft carries a second arm 191, the upper endof which isv arranged to engage an adjustable collar 192 secured" to the end of the latching bar 140. The rock shaft 190 also carries a third arm 19,3 t'ne upper end of whichis connected rod 194. The other end of the rod 194 passes through a hole in the arm 184 e f lithe, lever 180, and'is provided heyond-t hearm with adjustable nuts 195 for engaging the arm. During the rotation of the shaft .121 after the driving clutch therefor'has been thrown into operation, the resetting cam I187 operates the rod 188 to rock the shaft 190. During this rocking movementof. the a shaft 190 the arm 191-,

acting-against the collar 102, retracts the latching bar; 140 against the tensionof the spring'145, so-that. the latching dog 146 mayyreen'gage the. shoulder 147.. This movement of the rock shaft 190 takes place, before'the clutch controlling toggle 136 is.

turned orreset, and the end of the lever 142 is therefore in front of the end of the pin 141. For this reason the pin 141 is spring supported, so that it may yield as-the latching 1:40 is reset.v After the latching bar.

is reset; and -when the toggle 136 is straightened, the arm 142 moves down below thepin forward overthe';

" 4.1 so-that the pin snaps end of the arm, thns latching 't'li'e toggle'opcrating-rod 138 in retracted position. The rockingv movement of the "rock shaft 190 also 'operates'the rod 194 to swing the lever 18 0 againstthe'tension of the spring 185,-

so that the bell crank lever 183 and the slide V v y 1168 .at-the front end of the bar 165 are re- When one of thetrip"pinsstrikes the'latch; lever 169 during-the fee'd ofthe ,jack and shoe,the'detent[173 is disengaged fromithe" turnedto: normal position. As the slide 168'. 1s .thusreturned to normal position, the de- "tent 173 snapsin. position infront of the lug 17 4, so that the parts are-latched in position aja'inst the ten'sionof the spring 185..

Before the shaft 121 completes its revolution,

the cam 187 releases the rod 188, so that the rock" shaft 190 returns to normal position.

. In sewing around the toe of a shoe 1t 18 desirable 'thata swinging movement be impartedto thejack after each feeding move ment, and means is accordingly provided forwithdrawing the controller ate 162 from engagement with its support 63 durin the transfer of the point of operation of? the sewing mechanism about the toe, so that the correcting mechanism is thrown into operation during each cycle of operations performed by the sewing mechanism. In the construction shown, the means for-thus withdrawing the controller plate 162 comprises a earn 196- secured t0 the shaft 7, and arranged to operate upon'a 'r'oll'carried by the .5 upper end, of an arm 197 which issecured .to

a rock shaft 198. The rock shaft 198 carries a second arm 199,}which is' connected by means of a link 200 with the bell crank lever 164 to which. the controller platel162 is 00 pivoted. 1 The upper end of the link 200 is I connected with the bell crank lever by means of a slot 201 engaginga pin onthe bell crank lever, so that the operation-ofthebell crank lever by the devices which are operated by the trip pins 117 is not interfered with (Figs. 2, 4 and 16).. v

In order that the same controller plate 117, and the samearrangement of pins 118 may be utilized in sewing different sizes of shoes of the same style, means is provlded for moving the front end ofthe b'ar.16.5 in the direction .of the feed of the jack, and for varying the eXtentof this movement 1n accordance with the size of the shoe "to be sewed. For this purpose thex front end of the-bar165 is supportedin a guide block 202 which is .pivotally mounted onthe end-- of a: lever 203. The rear end of the -lever, 203 -is connected byLaJJink- 2O4 (Fig. '10) with-the upper end of'an iarml205 secured to .a rock shaft-206. 'Tlie rockfshaft carries a second arm-207 which is connected by: a. link-208 with a;I1" Qa 1'I I1 209 prO ectmgfrom a sleeve 210Lwhieh is loosely mounted on the .shaft 7 The sleeve 210 is providedwith a second arm 211, 'the ,upperl endof which is pivotally connected'ftoone jendi-ofra link v. 212.} The other end of the link 212ispivota y. to a. slide f mountedfin 'a--:-s1ot 4180 t emes,

in an arm 213 which prog'ects from a rash sleeve 214. The sleeve 214' is provided with a second arm 215, ,thelower end of carries a roll arranged-to engage a cam 2M5 secured to the shaft 7. flhelink naineected by a rod 217 with a vertii. ll

' the bar eerily timetable slide 21.8. The slide is pro- H}. the arm 1213, the extent to which the j-latehing devices are moved'may be varied in accordance withythe size of the shoe to' be sewed, no ove'ment being imparted to the latching de ices when the pivotal corn neqtion between the link and arm 213 is in line with the axis of the sleeve 214; In-

dicating devices may be employed in connection withthe adjustingmechan-isrn to indicate the proper adjustment for different sizes ofshoes." I

"The machine is provided with" devices operated by a treadle 220 through 'which the operator may throw the main friction clutch. 120 into operation tostart the machine, and is provided with devices operated by a cam 223. flier automatically disengaging the clutch after the sewing of theshoe has been completed- The devices 'for throwing the main clutch 120 into and out of operation are best shownin Figs. 16 and! 19. As here shown, the "main clutch .120 is provided. with a movable'member 222 which is secured toe sleeve 223 and is forced in a direction to engage the members of the clutch by a spring 224. The drivingv pulley 225 is secured upon the sleeve 223." The sleeve is forced a direction to disengage the driving member 2 22 of the clutch through a bell crank lever 226, one arm of ,which is provided with adjustable screws -227 for operating upon the sleeve 223, and the other end of whichflis connected with link of a toggle 228. The links of the toggle are forced in a direction'to dlsengage the clutch member 222 by a spring 229, and

are forced in a direction to allow the engagement of the clutch by a pneumatic piston 230. The piston is mounted in ,a-sleeve 1 231,.the rearend of which isconnected by a pipe 232 with a valve casing 233. A valve 234 is inountedin the valve casing 233 and controls communication bet-ween the pipe 232 and a supply pipe 235-Which is connected to a source of compressed air. The valve 234 is connected to the treadle' 220, and also to the lower end ofa' lever 236.

The upper end of the lever 236 is connected to the lower end of an arm 237 which extends downwardfrom a sleeve 238 mounted i on a stud 239. which is engagedby the cam 221.. The roll is held in engagement with theycamfby a.

spring 241. When the lever 220 is operated by the operator,-the valve 234- is shifted' The arm carries a roll 240 toopen communication betweenthe supply pipe 235' and thep-ipe 232, and thus admit air. backoiz' the piston 230, so that the clutch operating mechanism is operated' to engage the. main clutch. After the cam shaft' 7 has a. complete revolution, the ,valve 234' 1s shifted by the cam 221 to shut off communication between the supplypipe 235 and the pipe 232, so that the pressure back of the p1ston230 is relieved, and the spring 229 operates to disengage the clutch. The

cam shaft 7' is stopped in position when the main. clutch-v is disengaged. by a stop Lever; 242, the lower end of-whichI-carries' a roll engaging a cam on the cam shafha'nd the upper end of which is' connected to a spring pressed bar 243 by a 'link 244 (Figlfi).

The operation of the valve 234 instarting the machine may also admit compressed air to a pipe 245 whichleadsto devices (not shown) for throwingthe thread tensioninto operation, the tension on the thread being relleved' when theair is shut off from the pipe 245 in stopping the machine after the sewing of the-shoe hasbeen completed;

hen the main clutch 120 is engaged,'.the

sewing mechanism is continuously driven through a belt 246 which passes over a pullcy 247 secured to the driven member of the clutch. The belt also passesovera double pulley 248 mounted upon a stud the axis of i .which is in line with the/axis of. the head 3.

A belt- 249 passes around the double pulley 248 over suitable guide-pulleysiand about the driving pulley 250' or the sewing machine. Through these connections th'e sewing mechanismis continuously driven without interfering with the movements of the machine in correcting the relative-position of the sewing mechanism-and shoe.

Whilethe various features of-the inven- 'tion have been shown and described applied to a sewing machine for attaching the'upper or welt and upper to the insole of turn or weltshoes, it will be understoodthat the features of the invention are not confined in their application to such a machine, but may be embodied in various machines for operating upon boots and shoes, such as outsole stitchers, lasting machines, pegging' machines, and so forth. It will also be understood that' the specific construction and arrangement-bf the parts is not material exceptso'far as the same may be specified in the f-filair usfai d that the construction and I arrangement of "the-various parts may be modified and changed Without departing What I claim :is

from the'broad scope ofjthe invention;

Having explained the-nature and object of the invention, and specifically described one machine in which it may be'embodied,

1. An automatic shoemachine', having, in

Y! combination, means foroperating on a shoe, a shoe supporting jack movable to transfer the point of operation of said means around the shoe. and supported for lateral swinging movement to maintain theportion of the edge of the last or shoe sole in proximity to the operating means in substantiallythe same position with relation to the direction of feed, and devices independent of the operating means and acting independently of the movements of the-jac'kin transferring.

the point of operation around the shoe for constraining the jack to "swing' laterally about the point of operation of the operat-" around the shoe, substantially as described. 2. A'nautoma'tic shoe machine, having, in combination, means for operating on a shoe and a shoe supporting jack relatively movable'totransfer the point of. operation of the operating means around the shoe, mechanism acting automatically as the point of operation is transferred around the shoe to impart relatlve turning movements to the jack and operating means to maintain the portion of the edge of the last or shoe sole in proximity to the operating means in sub stantially' thesame position with relation to the direction of feed, a nd devices other than the operating means and turning mechanism for causing the relative turnin movements totake place about'the point 0 Opera tion of the operating means as such point is transferredaround the shoe, substantially as described.

.jack, and devices other than the operating means and turning mechanism for causing the jack to swing about the point of operationof the operating means as such point .lS transferred around the shoe, substantially asidescribed.

4. An automatic shoe'machine, having, in combination, means-for operating on a shoe including devices for feeding the shoe by engagement therewith, a, shoe supporting jack longitudinally movable and rotatable totransfer the p oint of operation of the pp- 1 crating means around the shoe, mechanism acting automatically to impart turning mg means :as such point is transferred.

movements to the jack as the point of operation of the operating means is transferred around the shoe to correct therelative position of the shoe and operating means, and devices other than the operating means and turning mechanismfor causing the jack to swing about the-point of operation of the operating means as such point is transferred around the shoe, substantially as described. v

5. An automatic shoe machine, having, in combination, means for-operating on a shoe,

.a shoe supporting jack, a support freely movable in its plane of movement upon Which the jack is rotata'bly mounted, mechanism acting to automatically impart turning movements to the jack as the point of operation of the operating means is transferred around the shoe to correct the relative position of the shoe and operating means, and devices other than the operating means, and turning mechanism for causing the jack to swing about the point of operation of the operating means, substantially as described.

6. Anautomatic, shoe machine, having, in combination, means for operating. npon a shoe, a shoe supporting jack movable and rotatable to transfer the'point of o eration of said means around the shoe, mechanism' acting to automatically impart turning movements to the jack, pivot devices the axis of 7 which passes through the point of operation of the operating means, and means for connecting said pivot devices with the jack to cause the jack to swing about the point of operation of the operating means as such point is transferred around the shoe, substantially as described.

7.. An automaticv shoe machine, having, in combination, means for operating on a shoe, a. shoe supporting jack movable and rotatable to transfer the point of operation around the shoe, mechanism acting to automatically impart turning movements mthe jack, a plate connected to move with the jack, and devices intermittently engaging the plate to determine the point about which the jack swings as the point of operation of the operating means is transferred around the shoe, substantially as described.

8. An automatic shoe machine, having, in combination, means for operating on a shoe, a shoe supporting jack movable and rotatable to transfer the'point of operation of the operating. means around the shoe,

swings, substantially as described.

9. An automaticshoe machine, having, in

combination, means for operating on a shoe.

mechanism acting to automatically impart 

